It’s safe to get your lashes wet a day after your lash lift. However, make it your top lash priority to keep them dry till 24 hours are up. Need-to-know! Some lash lift solutions take 48 hours to set, so ask your lash tech how long you should wait before getting your lashes wet. How badly your lash lift gets spoiled depends on how soon after the procedure your lashes get wet and how wet they get. So keep them as dry as possible for the first day after your lash lift.